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All results from a given calculation for CH2Br (bromomethyl radical)

using model chemistry: B3LYPultrafine/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes C2V 2A1

Conformer 1 (CS)

Jump to S1C2
Vibrational Frequencies calculated at B3LYPultrafine/aug-cc-pVDZ
Rotational Constants (cm-1) from geometry optimized at B3LYPultrafine/aug-cc-pVDZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/aug-cc-pVDZ
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at B3LYPultrafine/aug-cc-pVDZ
 hartrees
Energy at 0K-2613.405401
Energy at 298.15K 
HF Energy-2613.405401
Nuclear repulsion energy80.152019
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B3LYPultrafine/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3169 3075 3.91 126.96 0.08 0.14
2 A1 1369 1328 18.85 0.80 0.20 0.33
3 A1 695 675 18.41 12.16 0.12 0.21
4 B1 201 195 65.51 0.99 0.75 0.86
5 B2 3336 3238 1.07 55.69 0.75 0.86
6 B2 923 896 0.96 0.95 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4846.7 cm-1
Scaled (by 0.9704) Zero Point Vibrational Energy (zpe) 4703.3 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B3LYPultrafine/aug-cc-pVDZ
ABC
9.02389 0.37323 0.35840

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.496
Br2 0.000 0.000 0.371
H3 0.000 0.963 -1.997
H4 0.000 -0.963 -1.997

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.86661.08531.0853
Br21.86662.55592.5559
H31.08532.55591.9254
H41.08532.55591.9254

picture of bromomethyl radical state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 117.496 Br2 C1 H4 117.496
H3 C1 H4 125.009
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.284      
2 Br 0.298      
3 H -0.291      
4 H -0.291      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -1.001 1.001
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.709 0.000 0.000
y 0.000 -24.637 0.000
z 0.000 0.000 -22.204
Traceless
 xyz
x -3.288 0.000 0.000
y 0.000 -0.181 0.000
z 0.000 0.000 3.469
Polar
3z2-r26.939
x2-y2-2.072
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.256 0.000 0.000
y 0.000 4.428 0.000
z 0.000 0.000 6.784


<r2> (average value of r2) Å2
<r2> 43.379
(<r2>)1/2 6.586